WO2016065911A1 - 小区分簇的方法和基站 - Google Patents

小区分簇的方法和基站 Download PDF

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Publication number
WO2016065911A1
WO2016065911A1 PCT/CN2015/082065 CN2015082065W WO2016065911A1 WO 2016065911 A1 WO2016065911 A1 WO 2016065911A1 CN 2015082065 W CN2015082065 W CN 2015082065W WO 2016065911 A1 WO2016065911 A1 WO 2016065911A1
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cell
serving cell
neighboring cell
neighboring
rsrp
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PCT/CN2015/082065
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English (en)
French (fr)
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唐志华
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华为技术有限公司
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Priority to EP15855602.7A priority Critical patent/EP3209046A4/en
Priority to JP2017523791A priority patent/JP2017537532A/ja
Priority to KR1020177014375A priority patent/KR101852736B1/ko
Publication of WO2016065911A1 publication Critical patent/WO2016065911A1/zh
Priority to US15/581,160 priority patent/US20170230886A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to a method and a base station for cell clustering.
  • a cell is one of the important network elements in a wireless communication network.
  • the communication network when optimizing the network, if the adjustment is made for a certain cell alone, the overall performance of the system cannot be improved. Therefore, in the actual network optimization work, it is often necessary to aggregate a plurality of cells covering continuous, traffic, and quality into a suitable cell cluster for overall analysis and optimization, and at the same time, reduce the complexity of the entire network.
  • cluster master that is, a cluster according to the determined size of the cooperative cluster.
  • the center looks for a cell that cooperates with the available cell to maximize the capacity of the collaborative system and can reach a predetermined cooperative cluster size to complete the clustering of the cell.
  • the size of the cooperative cluster needs to be determined in advance, and the first cell in the clustering of the cell is randomly selected, so that although the fairness of the user can be ensured, the communication system in which the cell is clustered is Low performance.
  • Embodiments of the present invention provide a method and a base station for cell clustering to improve performance of a communication system.
  • an embodiment of the present invention provides a method for cell clustering, including:
  • initial information is used to indicate handover information between the serving cell and a neighboring cell, or interference information between the serving cell and the neighboring cell, where the neighboring cell is the serving cell a neighboring cell, where the serving cell is a first user equipment UE In the community;
  • the serving cell and the neighboring cell are clustered.
  • the acquiring an interference assessment indicator between the serving cell and the neighboring cell according to the initial information includes:
  • the interference assessment indicator between the serving cell and the neighboring cell is obtained according to the preset first increasing function and the first number of handovers.
  • the acquiring an interference assessment indicator between the serving cell and the neighboring cell according to the initial information includes:
  • the initial information is used to indicate the switching information between the serving cell and the neighboring cell
  • the second number of times of switching is greater than a second preset threshold, according to a preset second increasing function and the The second number of handovers acquires an interference assessment indicator between the serving cell and the neighboring cell.
  • the acquiring an interference assessment indicator between the serving cell and the neighboring cell according to the initial information includes:
  • the uplink reference signal received by the plurality of UEs in the serving cell to the neighboring cell receives the power RSRP, and obtains the An interference assessment indicator between the serving cell and the neighboring cell, where the multiple UEs include the first UE;
  • Obtaining the uplink RSRP of the first UE to the neighboring cell in the serving cell includes:
  • the first signal difference is a signal difference between a downlink RSRP of the serving cell and a downlink RSRP of the neighboring cell, where the first UE is The downlink RSRP that is reported includes the downlink RSRP of the serving cell to the first UE and the downlink RSRP of the neighboring cell to the first UE;
  • the acquiring an interference assessment indicator between the serving cell and the neighboring cell according to the initial information includes:
  • the uplink reference signal received by the multiple UEs in the neighboring cell to the serving cell receives the power RSRP, and obtains the An interference estimation indicator between the serving cell and the neighboring cell, where the multiple UEs include a second UE;
  • Obtaining an uplink RSRP of the second UE in the neighboring cell to the serving cell includes:
  • the second signal difference is a signal difference between a downlink RSRP of the neighboring cell and a downlink RSRP of the serving cell, where the second UE is The downlink RSRP that is reported includes the downlink RSRP of the neighboring cell to the second UE and the downlink RSRP of the serving cell to the second UE;
  • the clustering of the serving cell and the neighboring cell includes:
  • the neighboring cell whose interference assessment index is greater than the third preset threshold is divided into the same cluster as the serving cell.
  • the method further includes:
  • an embodiment of the present invention provides a base station, including:
  • a first acquiring module configured to acquire initial information, where the initial information is used to indicate handover information between the serving cell and a neighboring cell, or interference information between the serving cell and the neighboring cell, the neighboring
  • the cell is a cell adjacent to the serving cell, and the serving cell a cell in which the first user equipment UE is located;
  • a second acquiring module configured to acquire, according to the initial information, an interference assessment indicator between the serving cell and the neighboring cell
  • a clustering module configured to cluster the serving cell and the neighboring cell according to the interference assessment indicator.
  • the second acquiring module includes:
  • a first handover number acquisition submodule configured to obtain, when the initial information is used to indicate handover information between the serving cell and the neighboring cell, to obtain a first handover from the neighboring cell to the serving cell frequency;
  • a first processing submodule configured to acquire, between the serving cell and the neighboring cell, according to a preset first increasing function and the first switching number, if the first switching number is greater than a first preset threshold Interference assessment indicators.
  • the second acquiring module includes:
  • a second handover number acquisition submodule configured to acquire, when the initial information is used to indicate handover information between the serving cell and the neighboring cell, a second handover from the serving cell to the neighboring cell frequency;
  • a second processing submodule configured to acquire, between the serving cell and the neighboring cell, according to a preset second increasing function and the second switching number, if the second switching number is greater than a second preset threshold Interference assessment indicators.
  • the second acquiring module includes:
  • a third processing submodule configured to: when the initial information is used to indicate interference information between the serving cell and the neighboring cell, according to an uplink reference of multiple UEs in the serving cell to the neighboring cell The signal receiving power RSRP, the interference evaluation indicator between the serving cell and the neighboring cell, where the multiple UEs include the first UE;
  • the third processing submodule is specifically configured to:
  • the downlink RSRP reported by the first UE includes a downlink RSRP of the serving cell to the first UE and a downlink RSRP of the neighboring cell to the first UE;
  • the second acquiring module includes:
  • a fourth processing submodule configured to: when the initial information is used to indicate interference information between the serving cell and the neighboring cell, according to an uplink reference of multiple UEs in the neighboring cell to the serving cell The signal receiving power RSRP, the interference evaluation indicator between the serving cell and the neighboring cell, where the multiple UEs include the second UE;
  • the fourth processing submodule is specifically configured to:
  • the second signal difference is a signal difference between a downlink RSRP of the neighboring cell and a downlink RSRP of the serving cell, where the second UE is The downlink RSRP that is reported includes the downlink RSRP of the neighboring cell to the second UE and the downlink RSRP of the serving cell to the second UE;
  • the clustering module is specifically used to :
  • the neighboring cell whose interference assessment index is greater than the third preset threshold is divided into the same cluster as the serving cell.
  • Determining a delay module configured to determine that a delay between the first UE and the neighboring cell is less than a fourth preset threshold, and performing, according to the interference assessment indicator, the serving cell and the neighboring cell The operation of the cluster.
  • the cell clustering method and the base station provided by the embodiment of the present invention obtain the interference assessment index between the serving cell and the neighboring cell by using the obtained initial information, and cluster the serving cell and the neighboring cell according to the interference assessment indicator, where
  • the initial information is used to indicate the serving cell and the neighbor
  • the handover information between the cells, or the interference information between the serving cell and the neighboring cell, the neighboring cell is a cell adjacent to the serving cell, and the serving cell is the cell where the first user equipment UE is located. Since the inter-cell interference assessment index is obtained according to the initial information of the neighboring cell, the dynamic division of the cell cooperative cluster is performed, and the performance of the communication system is improved.
  • FIG. 1 is a schematic flowchart diagram of a method for cell clustering according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for cell clustering according to another embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of multi-cell cooperation in a communication system
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a base station according to another embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a base station according to still another embodiment of the present invention.
  • the method provided by the embodiment of the present invention can be used in a wireless network of different standards, for example, Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA). CDMA2000, Wideband Code Division Multiple Access (WCDMA), Time Division-Synchronous Code Division Multiple Access (TD-SCDMA), Long Term Evolution (Long Term) Evolution, LTE) system or subsequent evolution system of LTE, and the like.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • CDMA2000 Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • LTE Long Term Evolution
  • LTE Long Term Evolution
  • LTE Long Term Evolution
  • FIG. 1 is a schematic flowchart of a method for cell clustering according to an embodiment of the present invention. As shown in FIG. 1 , the method in this embodiment may include:
  • Step 101 Acquire initial information, where initial information is used to indicate handover information between the serving cell and the neighboring cell, or interference information between the serving cell and the neighboring cell, the neighboring cell is a cell adjacent to the serving cell, and the serving cell is the first A cell in which the user equipment UE is located.
  • the initial information includes the same-frequency handover information, the interference information, or the delay information between the serving cell and the neighboring cell, where the number of neighboring cells may be one or more, and for the number of neighboring cells,
  • the invention is not particularly limited in this regard.
  • Step 102 Acquire an interference assessment indicator between the serving cell and the neighboring cell according to the initial information.
  • the base station to which the serving cell belongs may calculate, according to the initial information, an interference estimation indicator of the serving cell to the neighboring cell or a neighboring cell to the serving cell. Interference assessment indicators.
  • Step 103 Cluster the serving cell and the neighboring cell according to the interference assessment indicator.
  • the type of the cooperative algorithm may be used to determine whether the serving cell and the neighboring cell are clustered according to the interference evaluation indicator of the serving cell to the neighboring cell or the interference evaluation indicator of the neighboring cell to the serving cell.
  • the base station to which the serving cell belongs may cluster the serving cell and the neighboring cell according to the interference assessment indicator of the neighboring cell to the serving cell;
  • the output of the cooperative algorithm affects both the serving cell and the neighboring cell, and the base station to which the serving cell belongs divides the serving cell and the neighboring cell according to the interference assessment indicator of the serving cell to the neighboring cell.
  • the cooperative algorithm may be, for example, an Adaptive Modulation and Coding (AMC) algorithm, a multi-cell interference cancellation algorithm, or a coordinated scheduling power control algorithm, etc., in a specific implementation process, according to different
  • AMC Adaptive Modulation and Coding
  • the application selects different cooperation algorithms, and the present invention is not particularly limited to the specific type of the cooperation algorithm.
  • the method for cell clustering in this embodiment may be performed every preset time, if the serving cell
  • the interference assessment indicator between the neighboring cell changes, and accordingly, the manner of clustering the cell will also change, that is, the cooperative cluster obtained after clustering the cell is not fixed. Rather, it is dynamically updated based on interference information between cells, thereby improving the performance of the communication system.
  • the method for cell clustering obtaineds an interference assessment indicator between a serving cell and a neighboring cell by using the obtained initial information, and clusters the serving cell and the neighboring cell according to the interference assessment indicator, where the initial information is used.
  • the information indicating the handover between the serving cell and the neighboring cell, or the interference information between the serving cell and the neighboring cell, the neighboring cell is a cell adjacent to the serving cell, and the serving cell is the cell where the first user equipment UE is located. Since the inter-cell interference assessment index is obtained according to the initial information of the neighboring cell, the dynamic division of the cell cooperative cluster is performed, and the performance of the communication system is improved.
  • the following methods may be used to obtain the interference assessment indicator between the serving cell and the neighboring cell according to the initial information.
  • any one of the following methods can be used for calculation according to the specific application.
  • the first type when the initial information is used to indicate the handover information between the serving cell and the neighboring cell, the interference evaluation indicator of the serving cell to the neighboring cell is obtained according to the first number of handovers from the neighboring cell to the serving cell.
  • the threshold when used, it may indirectly indicate that the neighboring cell and the serving cell are physically adjacent to each other, and there is a certain intensity of interference between the two cells.
  • the first preset threshold may be selected according to actual application or experience. For the selection of the specific value of the first preset threshold, the embodiment is not particularly limited herein.
  • the first switching function may be used to map the first handover number to the interference evaluation index of the serving cell to the neighboring cell, where the first increasing function may be an arbitrary increasing function, for example, Can be a linear increasing function, an exponential increasing function, etc., for the class of the first increasing function Type, the invention is not limited.
  • i is a serving cell
  • j is a neighboring cell
  • a ij is an interference assessment indicator of the serving cell to the neighboring cell
  • N ji is the first number of handovers.
  • the second type when the initial information is used to indicate the handover information between the serving cell and the neighboring cell, the interference assessment indicator of the neighboring cell to the serving cell is obtained according to the second number of handovers from the serving cell to the neighboring cell.
  • the second preset threshold may be selected according to actual application or experience. For the selection of the specific value of the second preset threshold, the embodiment is not particularly limited herein.
  • the second number of handovers may be mapped to the interference assessment indicator of the neighboring cell to the serving cell according to the formula (1.2), wherein the second increasing function may be an arbitrary increasing function, for example, It may be a linear increasing function, an exponential increasing function, etc., and the present invention is not limited to the type of the second increasing function.
  • i is the serving cell
  • j is the neighboring cell
  • a ji is the interference evaluation indicator of the neighboring cell to the serving cell
  • N ij is the second switching number.
  • the second increasing function may be the same as or different from the first increasing function.
  • the third type when the initial information is used to indicate the interference information between the serving cell and the neighboring cell, the received power of the uplink reference signal from the user equipment (User Equipment; UE) in the serving cell to the neighboring cell (Reference) Signal Receiving Power; referred to as: RSRP), obtains the interference assessment index of the serving cell to the neighboring cell.
  • UE User Equipment
  • RSRP Reference Signal Receiving Power
  • the uplink RSRP may be obtained by using multiple UEs in the serving cell to the neighboring cell.
  • the method of averaging obtains an interference assessment indicator between the serving cell and the neighboring cell, and specifically is an interference assessment indicator of the serving cell to the neighboring cell.
  • the uplink RSRPs of all UEs in the serving cell to the neighboring cells may be averaged.
  • the interference assessment index between the serving cell and the neighboring cell may be calculated according to formula (1.3):
  • i is a serving cell
  • j is a neighboring cell
  • a ij is an interference estimation indicator of the serving cell to the neighboring cell
  • U (i) is a set of all UEs in the serving cell
  • k 1 is a first UE located in the serving cell
  • RSRP_UL ij (k 1 ) is the uplink RSRP of the first UE to the neighboring cell.
  • the calculation manner of the uplink RSRP of the first UE to the neighboring cell located in the serving cell is described in detail below.
  • the first signal difference is obtained according to the downlink RSRP reported by the first UE, where the first signal difference is a signal difference between the downlink RSRP of the serving cell and the downlink RSRP of the neighboring cell.
  • the downlink RSRP reported by the first UE includes a downlink RSRP of the serving cell to the first UE and a downlink RSRP of the neighboring cell to the first UE.
  • the base station to which the serving cell belongs may calculate the signal difference between the downlink RSRP of the serving cell and the downlink RSRP of the neighboring cell according to formula (1.4):
  • ⁇ RSRP_DL ij (k 1 ) is the signal difference between the downlink RSRP of the serving cell and the downlink RSRP of the neighboring cell
  • RSRP_DL j (k 1 ) is the downlink RSRP of the neighboring cell to the first UE
  • RSRP_DL i (k 1 ) is The downlink RSRP of the serving cell to the first UE.
  • the base station to which the serving cell belongs After obtaining the first signal difference, the base station to which the serving cell belongs, according to the first signal difference and the uplink RSRP of the first UE to the serving cell, acquires the uplink RSRP of the first UE to the neighboring cell, and in a specific implementation process, Equation (1.5) calculates the uplink RSRP of the first UE to the neighboring cell:
  • RSRP_UL ij (k 1 ) RSRP_UL i (k 1 )+ ⁇ RSRP_DL ij (k 1 ) (1.5)
  • the RSRP_UL ij (k 1 ) is the uplink RSRP of the first UE to the neighboring cell, and the RSRP_UL i (k 1 ) is the uplink RSRP of the first UE to the serving cell.
  • the manner of obtaining the uplink RSRP of the other UEs in the serving cell to the neighboring cell is similar to the method of obtaining the uplink RSRP of the first UE to the neighboring cell, and details are not described herein again.
  • the fourth type when the initial information is used to indicate the interference information between the serving cell and the neighboring cell, the interference evaluation indicator of the neighboring cell to the serving cell is obtained according to the uplink RSRP of the multiple UEs in the neighboring cell to the serving cell.
  • the interference evaluation indicator between the serving cell and the neighboring cell may be obtained by averaging the uplink RSRPs of the multiple UEs in the neighboring cell to the serving cell, specifically, the interference evaluation indicator of the neighboring cell to the serving cell.
  • the uplink RSRPs of all UEs in the neighboring cell to the serving cell may be averaged.
  • the interference assessment index between the serving cell and the neighboring cell may be calculated according to formula (1.6):
  • i is a serving cell
  • j is a neighboring cell
  • a ji is an interference estimation indicator of the neighboring cell to the serving cell
  • U(j) is a set of all UEs in the neighboring cell
  • k 2 is a second UE located in the neighboring cell
  • RSRP_UL ji (k 2 ) is the uplink RSRP of the second UE to the serving cell.
  • the second signal difference is obtained according to the downlink RSRP reported by the second UE, where the second signal difference is a signal difference between the downlink RSRP of the neighboring cell and the downlink RSRP of the serving cell.
  • the downlink RSRP reported by the second UE includes the downlink RSRP of the neighboring cell to the second UE and the downlink RSRP of the serving cell to the second UE.
  • the downlink RSRP reported by the second UE is obtained according to the formula (1.7). Calculating the signal difference between the downlink RSRP of the neighboring cell and the downlink RSRP of the serving cell:
  • ⁇ RSRP_DL ji (k 2 ) is the signal difference between the downlink RSRP of the neighboring cell and the downlink RSRP of the serving cell
  • RSRP_DL i (k 2 ) is the downlink RSRP of the serving cell to the second UE
  • RSRP_DL j (k 2 ) is The downlink RSRP of the neighboring cell to the second UE.
  • the base station to which the serving cell belongs After obtaining the second signal difference, the base station to which the serving cell belongs, according to the second signal difference and the uplink RSRP of the second UE to the neighboring cell, acquires the uplink RSRP of the second UE to the serving cell, and in a specific implementation process, Equation (1.8) calculates the uplink RSRP of the second UE to the serving cell:
  • RSRP_UL ji (k 2 ) RSRP_UL j (k 2 )+ ⁇ RSRP_DL ji (k 2 ) (1.8)
  • the RSRP_UL ji (k 2 ) is the uplink RSRP of the second UE to the serving cell
  • the RSRP_UL j (k 2 ) is the uplink RSRP of the second UE to the neighboring cell.
  • the manner of obtaining the uplink RSRP of the other UEs in the neighboring cell to the serving cell is similar to the method of obtaining the uplink RSRP of the second UE to the serving cell, and details are not described herein again.
  • the uplink RSRPs of multiple UEs located in the serving cell to the neighboring cell are respectively obtained, or are located in the neighboring cell.
  • the uplink RSRP of the UE to the serving cell may directly adopt the measured value, and calculate an interference assessment indicator between the serving cell and the neighboring cell according to formula (1.3) or (1.6).
  • the method for cell clustering provided by the embodiment of the present invention calculates the interference estimation index between the serving cell and the neighboring cell by using different initial information obtained, simplifies the calculation of the interference assessment index, and improves the calculation accuracy.
  • FIG. 2 is a schematic flowchart diagram of a method for cell clustering according to another embodiment of the present invention.
  • Embodiments of the present invention provide a method for cell clustering. As shown in FIG. 2, the method in this embodiment may include:
  • Step 201 Acquire initial information, where initial information is used to indicate handover information between the serving cell and the neighboring cell, or interference information between the serving cell and the neighboring cell, the neighboring cell is a cell adjacent to the serving cell, and the serving cell is the first A cell in which the user equipment UE is located.
  • FIG. 3 is a schematic structural diagram of multi-cell cooperation in a communication system. As shown in FIG. 3, there may be multiple cells in a communication system. If the first UE is located in the cell 2, the cell 2 is used as a serving cell, and the cell 2 is The neighboring cells are neighboring cells, and the base station to which the cell 2 belongs can obtain the same-frequency handover information, interference information, or delay information between the cell 2 and the neighboring cell.
  • Step 202 Acquire an interference assessment indicator between the serving cell and the neighboring cell according to the initial information.
  • the base station to which the serving cell belongs may obtain the interference evaluation indicator of the serving cell to the neighboring cell or the interference evaluation indicator of the neighboring cell to the serving cell according to the initial information. For example, after obtaining the initial information of the cell 2 and the cell 1 adjacent thereto, the interference evaluation indicator of the cell 2 to the cell 1 or the interference evaluation index of the cell 1 to the cell 2 can be obtained, and the cell 2 is acquired for other neighboring cells.
  • the interference assessment indicator is similar to the interference estimation indicators of other neighboring cells to the cell 2, and is not described here.
  • Step 203 Divide a neighboring cell whose interference assessment index is greater than a third preset threshold into a service The same cluster of cells.
  • the cooperation algorithm it is determined that the cooperation algorithm not only affects the serving cell but also affects the neighboring cell, for example, a coordinated scheduling power control algorithm, etc., at this time, the base station to which the serving cell belongs will recognize all The neighboring cells interfered by the serving cell, and the neighboring cells and the serving cell are divided into the same cell cluster.
  • the interference assessment indicator of the serving cell to each neighboring cell may be calculated by acquiring the first mode or the third mode in the interference assessment indicator mode between the serving cell and the neighboring cell, and The neighboring cell corresponding to the interference assessment indicator that is greater than the third preset threshold is divided into the same cluster as the serving cell.
  • the interference evaluation index of the cell 2 to the cell 1, the cell 2 to the cell 4, the cell 2 to the cell 5, and the cell 2 to the cell 3 is obtained by calculation, if the cell 2 is the cell 1 and the cell 2 If the interference evaluation indicator for the cell 4 is greater than the third preset threshold, the cell 2, the cell 1 and the cell 4 are divided into the same cluster.
  • the output of the cooperative algorithm affects not only the serving cell but also the neighboring cell
  • the cluster is clustered to obtain the cooperative cluster
  • the related information of the neighboring cell in the cooperative cluster needs to be utilized, and the coordinated cluster is used. Optimize the network to improve the overall performance of the communication system.
  • the cooperation algorithm determines that the cooperation algorithm only affects the serving cell, and does not affect the neighboring cell, such as a cooperative interference prediction AMC algorithm, a multi-cell interference cancellation algorithm, etc., at this time, the serving cell
  • the associated base station will identify all neighboring cells that cause interference to the serving cell, and divide these neighboring cells and the serving cell into the same cell cluster.
  • the interference estimation indicator of each neighboring cell to the serving cell may be calculated by acquiring the second mode or the fourth mode in the interference assessment indicator mode between the serving cell and the neighboring cell, and The neighboring cell corresponding to the interference assessment indicator that is greater than the third preset threshold is divided into the same cluster as the serving cell.
  • the interference evaluation index of the cell 1 to the cell 2, the cell 4 to the cell 2, the cell 5 to the cell 2, and the cell 3 to the cell 2 is obtained by calculation, if the cell 1 is the cell 2 and the cell 4 If the interference assessment indicator for the cell 2 is greater than the third preset threshold, the cell 1, the cell 4, and the cell 2 are divided into the same cluster.
  • the third preset threshold may be selected according to actual needs. In a specific implementation process, an appropriate value may be selected according to experience. For the selection of the specific value of the third preset threshold, the embodiment is not particularly limited herein.
  • the output of the cooperative algorithm affects only the serving cell and does not affect the neighboring cell
  • the cluster is clustered to obtain the cooperative cluster
  • the related information of the neighboring cell in the cooperative cluster needs to be utilized in the service. Optimization in the small area can improve the overall performance of the communication system.
  • the method for cell clustering obtaineds an interference assessment indicator between a serving cell and a neighboring cell by using the obtained initial information, and clusters the serving cell and the neighboring cell according to the interference assessment indicator, where the initial information is used.
  • the handover information between the serving cell and the neighboring cell, or the interference information between the serving cell and the neighboring cell, the neighboring cell is a cell adjacent to the serving cell, and the serving cell is the cell where the first UE is located. Since the inter-cell interference assessment index is obtained according to the initial information of the neighboring cell, the cell cooperative cluster is divided, and the performance of the communication system is improved. In addition, by determining whether the interference assessment index is greater than a third preset threshold, and performing clustering according to the judgment result, the accuracy of the clustering is improved.
  • the cell division is performed. Before the cluster, it is first determined whether the delay between the first UE and the neighboring cell is less than a fourth preset threshold. If the delay is less than the fourth preset threshold, the time delay of the cooperation algorithm for information interaction is met. If required, the clustering of the serving cell and the neighboring cell is performed according to the interference assessment indicator to obtain a cooperative cluster; if the delay between the first UE and the neighboring cell does not satisfy the delay requirement of the cooperative algorithm for information interaction, The neighboring cell is not considered in clustering.
  • IP RAN Internet Protocol Radio Access Network
  • the operation of determining that the delay between the first UE and the neighboring cell is less than the fourth preset threshold may also be performed before acquiring the interference assessment indicator between the serving cell and the neighboring cell.
  • cluster master when clustering a cell, usually, an available cell is randomly selected as a "cluster master", which results in lower communication system performance. In this embodiment, each cell assumes the role of "cluster master", thereby ensuring the fairness of the user and improving the performance of the communication system.
  • the clustering method is used to cluster the cells in the clustering manner in the foregoing embodiment, and the obtained cooperative clusters of the cells may overlap each other or may not overlap.
  • the cooperative cluster obtained in this manner is cell-level and thus does not need to be Considering the capacity of the collaborative system, the complexity of the clustering algorithm can be reduced.
  • the base station to which the serving cell belongs will send the clustering information to the cooperative cluster through the X2 port.
  • the cell is used for overall optimization of the network.
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station provided by the embodiment of the present invention includes a first obtaining module 401, a second acquiring module 402, and a clustering module 403.
  • the first obtaining module 401 is configured to obtain initial information, where the initial information is used to indicate handover information between the serving cell and a neighboring cell, or interference information between the serving cell and the neighboring cell.
  • the neighboring cell is a cell that is adjacent to the serving cell, and the serving cell is a cell where the first user equipment UE is located;
  • the second acquiring module 402 is configured to acquire the serving cell and the neighboring cell according to the initial information.
  • the interference assessment indicator is used;
  • the clustering module 403 is configured to cluster the serving cell and the neighboring cell according to the interference assessment indicator.
  • the base station of the cell clustering in this embodiment may be used in the technical solution of the method for the clustering of the cell shown in FIG. 1 , and the implementation principle thereof is similar, and details are not described herein again.
  • the base station provided by the embodiment of the present invention obtains an interference assessment indicator between the serving cell and the neighboring cell by using the obtained initial information, and clusters the serving cell and the neighboring cell according to the interference assessment indicator, where the initial information is used to represent the serving cell.
  • FIG. 5 is a schematic structural diagram of a base station according to another embodiment of the present invention.
  • the second obtaining module 402 includes: a first switching times acquisition sub-module 4021 and a first processing sub-module 4022.
  • the first handover number acquisition sub-module 4021 is configured to obtain, when the initial information is used to indicate handover information between the serving cell and the neighboring cell, obtain handover from the neighboring cell. a first number of times of switching to the serving cell; the first processing sub-module 4022 is configured to obtain, according to the preset first increasing function and the first switching number, if the first switching number is greater than a first preset threshold An interference assessment indicator between the serving cell and the neighboring cell.
  • the second obtaining module 402 includes a second switching number obtaining submodule 4023 and a second processing submodule 4024.
  • the second handover number acquisition sub-module 4023 is configured to acquire, when the initial information is used to indicate handover information between the serving cell and the neighboring cell, a handover from the serving cell to the neighboring cell.
  • the second processing sub-module 4024 is configured to acquire the serving cell according to the preset second increasing function and the second switching number, and if the second switching number is greater than the second preset threshold Interference assessment indicators between neighboring cells.
  • the second obtaining module 402 includes a third processing submodule 4025.
  • the third processing sub-module 4025 is configured to: when the initial information is used to indicate interference information between the serving cell and the neighboring cell, according to multiple UEs in the serving cell to the neighboring cell The uplink reference signal receiving power RSRP, the interference evaluation indicator between the serving cell and the neighboring cell, where the multiple UEs include the first UE;
  • the third processing submodule 4025 is specifically configured to:
  • the first signal difference is a signal difference between a downlink RSRP of the serving cell and a downlink RSRP of the neighboring cell; the first UE
  • the downlink RSRP that is reported includes the downlink RSRP of the serving cell to the first UE and the downlink RSRP of the neighboring cell to the first UE;
  • the second obtaining module 402 includes a fourth processing submodule 4026.
  • the fourth processing sub-module 4026 is configured to: when the initial information is used to indicate interference information between the serving cell and the neighboring cell, according to multiple UEs in the neighboring cell to the serving cell
  • the uplink reference signal receives the power RSRP, and obtains an interference assessment indicator between the serving cell and the neighboring cell, where the multiple UEs include the second UE;
  • the fourth processing submodule 4026 is specifically configured to:
  • the downlink RSRP reported by the second UE includes a downlink RSRP of the neighboring cell to the second UE and a downlink RSRP of the serving cell to the second UE;
  • the clustering module 403 is specifically configured to: divide the neighboring cell whose interference assessment indicator is greater than the third preset threshold into the same cluster as the serving cell.
  • the base station further includes a determining delay module 404, where the determining delay module 404 is configured to determine that a delay between the first UE and the neighboring cell is less than a fourth preset threshold;
  • the interference assessment indicator is an operation of clustering the serving cell and the neighboring cell.
  • the base station of this embodiment may be used to implement the technical solution of the method for cell clustering provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • FIG. 6 is a schematic structural diagram of a base station according to still another embodiment of the present invention.
  • the base station 100 provided in this embodiment includes a processor 1001 and a memory 1002 and a receiver 1003.
  • the receiver 1003 can be connected to the processor 1001.
  • the memory 1002 stores execution instructions.
  • the processor 1001 communicates with the memory 1002, and the processor 1001 calls an execution instruction in the memory 1002 for performing the following operations:
  • initial information is used to indicate handover information between the serving cell and a neighboring cell, or interference information between the serving cell and the neighboring cell, where the neighboring cell is the serving cell
  • the serving cell is the serving cell
  • An adjacent cell where the serving cell is a cell where the first user equipment UE is located;
  • the serving cell and the neighboring cell are clustered.
  • the acquiring the interference assessment indicator between the serving cell and the neighboring cell according to the initial information includes:
  • the interference assessment indicator between the serving cell and the neighboring cell is obtained according to the preset first increasing function and the first number of handovers.
  • the acquiring the interference assessment indicator between the serving cell and the neighboring cell according to the initial information includes:
  • the interference assessment indicator between the serving cell and the neighboring cell is obtained according to the preset second increasing function and the second number of handovers.
  • the acquiring the interference assessment indicator between the serving cell and the neighboring cell according to the initial information includes:
  • the uplink reference signal received by the plurality of UEs in the serving cell to the neighboring cell receives the power RSRP, and obtains the An interference assessment indicator between the serving cell and the neighboring cell, where the multiple UEs include the first UE;
  • Obtaining the uplink RSRP of the first UE to the neighboring cell in the serving cell includes:
  • the first signal difference is a signal difference between a downlink RSRP of the serving cell and a downlink RSRP of the neighboring cell, where the first UE is The downlink RSRP that is reported includes the downlink RSRP of the serving cell to the first UE and the downlink RSRP of the neighboring cell to the first UE;
  • the acquiring the interference assessment indicator between the serving cell and the neighboring cell according to the initial information includes:
  • the uplink reference signal received by the multiple UEs in the neighboring cell to the serving cell receives the power RSRP, and obtains the An interference estimation indicator between the serving cell and the neighboring cell, where the multiple UEs include a second UE;
  • Obtaining an uplink RSRP of the second UE in the neighboring cell to the serving cell includes:
  • the second signal is The signal difference is the signal difference between the downlink RSRP of the neighboring cell and the downlink RSRP of the serving cell, and the downlink RSRP reported by the second UE includes the downlink RSRP of the neighboring cell to the second UE, and the a downlink RSRP of the serving cell to the second UE;
  • the clustering the serving cell and the neighboring cell according to the interference assessment indicator includes:
  • the neighboring cell whose interference assessment index is greater than the third preset threshold is divided into the same cluster as the serving cell.
  • the method before the clustering the serving cell and the neighboring cell according to the interference assessment indicator, the method further includes:
  • the base station of this embodiment may be used to implement the technical solution of the method for cell clustering provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例提供一种小区分簇的方法和基站，该方法包括：获取初始信息，初始信息用于表示服务小区与邻小区之间的切换信息，或者服务小区与邻小区之间的干扰信息，邻小区为与服务小区相邻的小区，服务小区为第一用户设备UE所在的小区；根据初始信息获取服务小区与邻小区之间的干扰评估指标；根据干扰评估指标，将服务小区与邻小区分簇。本发明实施例提供的小区分簇的方法和基站能够提高通信系统的性能。

Description

小区分簇的方法和基站 技术领域
本发明实施例涉及通信技术，尤其涉及一种小区分簇的方法和基站。
背景技术
小区是无线通信网络中重要的网络单元之一。在通信网络中，对网络进行优化时，若单纯针对某个小区进行调整，往往并不能达到系统整体性能的提升。因此，在实际的网络优化工作中，往往需要将覆盖连续、话务、质量相关的若干个小区聚合为合适的小区簇进行整体的分析和优化，同时可以降低整网的复杂度。
现有技术中，对小区进行分簇时，通过综合考虑信道状态、优先级及地理位置的变化等因素，根据确定好的协作簇的大小，随机选择一个可用小区作为“簇主”，即簇的中心，然后寻找与该可用小区协作的小区，以使协作系统容量最大，并且可以达到预定的协作簇大小，以此完成小区的分簇。
然而，现有技术中由于需要预先确定协作簇的大小，而且小区分簇时的第一个小区是随机选择的，这样，虽然可以保证用户的公平性，但是小区分簇后所在的通信系统的性能较低。
发明内容
本发明实施例提供一种小区分簇的方法和基站，用以提高通信系统的性能。
第一方面，本发明实施例提供一种小区分簇的方法，包括：
获取初始信息，所述初始信息用于表示所述服务小区与邻小区之间的切换信息，或者所述服务小区与所述邻小区之间的干扰信息，所述邻小区为与所述服务小区相邻的小区，所述服务小区为第一用户设备UE所 在的小区；
根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标；
根据所述干扰评估指标，将所述服务小区与所述邻小区分簇。
结合第一方面，在第一方面的第一种可能的实现方式中，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，获取从所述邻小区切换到所述服务小区的第一切换次数；
若所述第一切换次数大于第一预设阈值，则根据预设的第一增函数和所述第一切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
结合第一方面，在第一方面的第二种可能的实现方式中，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
获取从所述服务小区切换到所述邻小区的第二切换次数；
当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，若所述第二切换次数大于第二预设阈值，则根据预设的第二增函数和所述第二切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
结合第一方面，在第一方面的第三种可能的实现方式中，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述服务小区内的多个UE到所述邻小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括所述第一UE；
获取所述服务小区内的所述第一UE到所述邻小区的上行RSRP包括：
根据所述第一UE上报的下行RSRP，获取第一信号差，所述第一信号差为所述服务小区的下行RSRP与所述邻小区的下行RSRP之间的信号差，所述第一UE上报的下行RSRP包括所述服务小区到所述第一UE的下行RSRP和所述邻小区到所述第一UE的下行RSRP；
根据所述第一信号差和所述第一UE到所述服务小区的上行RSRP，获取所述第一UE到所述邻小区的上行RSRP。
结合第一方面，在第一方面的第四种可能的实现方式中，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述邻小区内的多个UE到所述服务小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括第二UE；
获取所述邻小区内的所述第二UE到所述服务小区的上行RSRP包括：
根据所述第二UE上报的下行RSRP，获取第二信号差，所述第二信号差为所述邻小区的下行RSRP与所述服务小区的下行RSRP之间的信号差，所述第二UE上报的下行RSRP包括所述邻小区到所述第二UE的下行RSRP和所述服务小区到所述第二UE的下行RSRP；
根据所述第二信号差和所述第二UE到所述邻小区的上行RSRP，获取所述第二UE到所述服务小区的上行RSRP。
结合第一方面，第一方面的第一种至第一方面的第四种任一种可能的实现方式，在第一方面的第五种可能的实现方式中，根据所述干扰评估指标，将所述服务小区与所述邻小区分簇包括：
将所述干扰评估指标大于第三预设阈值的邻小区划分为与所述服务小区相同的簇。
结合第一方面、第一方面的第一种至第一方面的第五种任一种可能的实现方式，在第一方面的第六种可能的实现方式中，根据所述干扰评估指标，将所述服务小区与所述邻小区分簇之前，还包括：
确定所述第一UE与所述邻小区之间的时延小于第四预设阈值，则执行根据所述干扰评估指标，将所述服务小区与所述邻小区分簇的操作。
第二方面，本发明实施例提供一种基站，包括：
第一获取模块，用于获取初始信息，所述初始信息用于表示所述服务小区与邻小区之间的切换信息，或者所述服务小区与所述邻小区之间的干扰信息，所述邻小区为与所述服务小区相邻的小区，所述服务小区 为第一用户设备UE所在的小区；
第二获取模块，用于根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标；
分簇模块，用于根据所述干扰评估指标，将所述服务小区与所述邻小区分簇。
结合第二方面，在第二方面的第一种可能的实现方式中，所述第二获取模块包括：
第一切换次数获取子模块，用于当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，获得从所述邻小区切换到所述服务小区的第一切换次数；
第一处理子模块，用于若所述第一切换次数大于第一预设阈值，则根据预设的第一增函数和所述第一切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
结合第二方面，在第二方面的第二种可能的实现方式中，所述第二获取模块包括：
第二切换次数获取子模块，用于当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，获取从所述服务小区切换到所述邻小区的第二切换次数；
第二处理子模块，用于若所述第二切换次数大于第二预设阈值，则根据预设的第二增函数和所述第二切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
结合第二方面，在第二方面的第三种可能的实现方式中，所述第二获取模块包括：
第三处理子模块，用于当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述服务小区内的多个UE到所述邻小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括所述第一UE；
所述第三处理子模块具体用于：
根据所述第一UE上报的下行RSRP，获取第一信号差，所述第一信号差为所述服务小区的下行RSRP与所述邻小区的下行RSRP之间的信号 差；所述第一UE上报的下行RSRP包括所述服务小区到所述第一UE的下行RSRP和所述邻小区到所述第一UE的下行RSRP；
根据所述第一信号差和所述第一UE到所述服务小区的上行RSRP，获取所述第一UE到所述邻小区的上行RSRP。
结合第二方面，在第二方面的第四种可能的实现方式中，所述第二获取模块包括：
第四处理子模块，用于当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述邻小区内的多个UE到所述服务小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括第二UE；
所述第四处理子模块具体用于：
根据所述第二UE上报的下行RSRP，获取第二信号差，所述第二信号差为所述邻小区的下行RSRP与所述服务小区的下行RSRP之间的信号差，所述第二UE上报的下行RSRP包括所述邻小区到所述第二UE的下行RSRP和所述服务小区到所述第二UE的下行RSRP；
根据所述第二信号差和所述第二UE到所述邻小区的上行RSRP，获取所述第二UE到所述服务小区的上行RSRP。
结合第二方面，第二方面的第一种至第二方面的第四种任一种可能的实现方式，在第二方面的第五种可能的实现方式中，所述分簇模块具体用于：
将所述干扰评估指标大于第三预设阈值的邻小区划分为与所述服务小区相同的簇。
结合第二方面，第二方面的第一种至第二方面的第五种任一种可能的实现方式，在第二方面的第六种可能的实现方式中，还包括
确定时延模块，用于确定所述第一UE与所述邻小区之间的时延小于第四预设阈值，则执行根据所述干扰评估指标，将所述服务小区与所述邻小区分簇的操作。
本发明实施例提供的小区分簇的方法和基站，通过获取的初始信息，得到服务小区与邻小区之间的干扰评估指标，根据该干扰评估指标，将服务小区与邻小区分簇，其中，初始信息用于表示服务小区与邻 小区之间的切换信息，或者服务小区与邻小区之间的干扰信息，邻小区为与服务小区相邻的小区，服务小区为第一用户设备UE所在的小区。由于根据邻小区的初始信息得到小区间的干扰评估指标，从而进行小区协作簇的动态划分，提高了通信系统的性能。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明一实施例的小区分簇的方法的流程示意图；
图2为本发明另一实施例的小区分簇的方法的流程示意图；
图3为通信系统中多小区协作的结构示意图；
图4为本发明一实施例的基站的结构示意图；
图5为本发明另一实施例的基站的结构示意图；
图6为本发明再一实施例的基站的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供的方法可以用于不同的制式的无线网络中，例如：全球移动通信系统(Global System for Mobile Communication；简称：GSM)、码分多址(Code Division Multiple Access；简称：CDMA)、CDMA2000、宽带码分多址(Wideband Code Division Multiple Access；简称：WCDMA)、时分同步码分多址(Time Division-Synchronous Code Division Multiple Access；简称：TD-SCDMA)、长期演进(Long Term  Evolution，LTE)系统或LTE的后续演进系统等。无线接入网络在不同的系统中可包括不同的网元。例如，LTE和LTE的后续演进系统中无线接入网络的网元包括演进型基站(evolved NodeB，eNodeB)，本发明实施例并不限定。
图1为本发明一实施例的小区分簇的方法的流程示意图，如图1所示，本实施例的方法可以包括：
步骤101、获取初始信息，初始信息用于表示服务小区与邻小区之间的切换信息，或者服务小区与邻小区之间的干扰信息，邻小区为与服务小区相邻的小区，服务小区为第一用户设备UE所在的小区。
在本实施例中，初始信息包括服务小区与邻小区之间的同频切换信息、干扰信息或者时延信息等，其中，邻小区的数量可以为一个或者多个，对于邻小区的数量，本发明对此不作特别限制。
步骤102、根据初始信息获取服务小区与邻小区之间的干扰评估指标。
在本实施例中，对于任意一个邻小区，服务小区所属的基站获取到该邻小区的初始信息之后，根据该初始信息，可以计算获得服务小区对邻小区的干扰评估指标或邻小区对服务小区的干扰评估指标。
步骤103、根据干扰评估指标，将服务小区与邻小区分簇。
在本实施例中，可以通过协作算法的类型，决定是根据服务小区对邻小区的干扰评估指标，还是邻小区对服务小区的干扰评估指标，将服务小区与邻小区分簇。在具体的实现过程中，若协作算法的输出只影响服务小区，而不影响邻小区，则服务小区所属的基站根据邻小区对服务小区的干扰评估指标，将服务小区与邻小区分簇；若协作算法的输出既对服务小区有影响，又对邻小区造成影响，则服务小区所属的基站根据服务小区对邻小区的干扰评估指标，将服务小区与邻小区分簇。其中，协作算法例如可以是协作干扰预测自适应调制编码(Adaptive Modulation and Coding；简称：AMC)算法、多小区干扰对消算法或协调调度功控算法等，在具体的实现过程中，可以根据不同的应用选取不同的协作算法，对于协作算法的具体类型，本发明在此不作特别限制。
另外，可以每隔预设时间执行本实施例的小区分簇的方法，若服务小区 与邻小区之间的干扰评估指标发生变化，相应地，对小区进行分簇的方式也会随之发生改变，也就是说，对小区进行分簇后获得的协作簇，并不是固定不变，而是根据小区间的干扰信息进行动态更新的，从而可以提高通信系统的性能。
本发明实施例提供的小区分簇的方法，通过获取的初始信息，得到服务小区与邻小区之间的干扰评估指标，根据干扰评估指标，将服务小区与邻小区分簇，其中，初始信息用于表示服务小区与邻小区之间的切换信息，或者服务小区与邻小区之间的干扰信息，邻小区为与服务小区相邻的小区，服务小区为第一用户设备UE所在的小区。由于根据邻小区的初始信息得到小区间的干扰评估指标，从而进行小区协作簇的动态划分，提高了通信系统的性能。
在上述小区分簇的方法实施例的基础上，根据初始信息获取服务小区与邻小区之间的干扰评估指标的方式可以有以下几种。在实际的应用过程中，可以根据具体的应用采用以下任意一种方法进行计算。
第一种：当初始信息用于表示服务小区与邻小区之间的切换信息时，根据从邻小区切换到服务小区的第一切换次数，获取服务小区对邻小区的干扰评估指标。
具体地，通过获取邻小区与服务小区之间的切换次数，可以获知两个小区是否相邻，本领域技术人员可以理解，若从邻小区切换到服务小区的第一切换次数大于第一预设阈值时，则可以间接地说明邻小区与服务小区在物理上互为邻区，而且两个小区之间存在一定强度的干扰。在具体的实现过程中，第一预设阈值可以根据实际应用或者经验进行选取。对于第一预设阈值的具体值的选取，本实施例在此不作特别限制。
通过获取从邻小区切换到服务小区的第一切换次数，判断第一切换次数是否大于第一预设阈值，若获知第一切换次数大于第一预设阈值，则根据预设的第一增函数和第一切换次数获取服务小区与邻小区之间的干扰评估指标，具体为服务小区对邻小区的干扰评估指标。在具体的实现过程中，可以根据公式(1.1)，采用第一增函数将第一切换次数映射为服务小区对邻小区的干扰评估指标，其中，第一增函数可以是任意的增函数，例如可以是线性增函数、指数增函数等，对于第一增函数的类 型，本发明并不加以限制。
Aij＝function(Nji)   (1.1)
其中，i为服务小区，j为邻小区，Aij为服务小区对邻小区的干扰评估指标，Nji为第一切换次数。
第二种：当初始信息用于表示服务小区与邻小区之间的切换信息时，根据从服务小区切换到邻小区的第二切换次数，获取邻小区对服务小区的干扰评估指标。
具体地，可以通过邻小区与服务小区之间的切换次数，获知两个小区是否相邻，本领域技术人员可以理解，若服务小区切换到邻小区的第二切换次数大于第二预设阈值，则间接地说明服务小区与邻小区在物理上互为邻区，而且两个小区之间存在一定强度的干扰。在具体的实现过程中，第二预设阈值可以根据实际应用或者经验进行选取。对于第二预设阈值的具体值的选取，本实施例在此不作特别限制。
通过获取从服务小区切换到邻小区的第二切换次数，判断第二切换次数是否大于第二预设阈值，若获知第二切换次数大于第二预设阈值，则根据预设的第二增函数和第二切换次数获取服务小区与邻小区之间的干扰评估指标，具体为邻小区对服务小区的干扰评估指标。在具体的实现过程中，可以根据公式(1.2)，采用第二增函数将第二切换次数映射为邻小区对服务小区的干扰评估指标，其中，第二增函数可以是任意的增函数，例如可以是线性增函数、指数增函数等，对于第二增函数的类型，本发明并不加以限制。
Aji＝function(Nij)   (1.2)
其中，i为服务小区，j为邻小区，Aji为邻小区对服务小区的干扰评估指标，Nij为第二切换次数。
另外，第二增函数可以与第一增函数相同，也可以不同。
第三种：当初始信息用于表示服务小区与邻小区之间的干扰信息时，根据服务小区内的多个用户设备(User Equipment；简称：UE)到邻小区的上行参考信号接收功率(Reference Signal Receiving Power；简称：RSRP)，获取服务小区对邻小区的干扰评估指标。
具体地，可以通过对服务小区内的多个UE到邻小区的上行RSRP求 平均值的方式，获取服务小区与邻小区之间的干扰评估指标，具体为服务小区对邻小区的干扰评估指标。优选地，可以对服务小区内的所有UE到邻小区的上行RSRP求平均值。在具体的实现过程中，可以根据公式(1.3)计算获得服务小区与邻小区之间的干扰评估指标：
Figure PCTCN2015082065-appb-000001
其中，i为服务小区，j为邻小区，Aij为服务小区对邻小区的干扰评估指标，U(i)为服务小区中所有UE的集合，k1为位于服务小区中的第一UE，RSRP_ULij(k1)为第一UE到邻小区的上行RSRP。
下面对位于服务小区内的第一UE到邻小区的上行RSRP的计算方式进行详细介绍。
首先根据第一UE上报的下行RSRP，获取第一信号差，其中，第一信号差为服务小区的下行RSRP与邻小区的下行RSRP之间的信号差。第一UE上报的下行RSRP包括服务小区到第一UE的下行RSRP和邻小区到第一UE的下行RSRP。当服务小区所属的基站获取到第一UE上报的下行RSRP之后，即可根据公式(1.4)，计算获得服务小区的下行RSRP与邻小区的下行RSRP之间的信号差：
ΔRSRP_DLij(k1)＝RSRP_DLj(k1)-RSRP_DLi(k1)   (1.4)
其中，ΔRSRP_DLij(k1)为服务小区的下行RSRP与邻小区的下行RSRP之间的信号差，RSRP_DLj(k1)为邻小区到第一UE的下行RSRP，RSRP_DLi(k1)为服务小区到第一UE的下行RSRP。
在获取到第一信号差之后，服务小区所属的基站根据第一信号差和第一UE到服务小区的上行RSRP，获取第一UE到邻小区的上行RSRP，在具体的实现过程中，可以根据公式(1.5)计算第一UE到邻小区的上行RSRP：
RSRP_ULij(k1)＝RSRP_ULi(k1)+ΔRSRP_DLij(k1)   (1.5)
其中，RSRP_ULij(k1)为第一UE到邻小区的上行RSRP，RSRP_ULi(k1)为第一UE到服务小区的上行RSRP。
需要进行说明的是，服务小区内其它UE到邻小区的上行RSRP的获取方式，与第一UE到邻小区的上行RSRP的获取方式类似，此处不再赘述。
第四种：当初始信息用于表示服务小区与邻小区之间的干扰信息时，根据邻小区内的多个UE到服务小区的上行RSRP，获取邻小区对服务小区的干扰评估指标。
具体地，可以通过对邻小区内的多个UE到服务小区的上行RSRP求平均值的方式，获取服务小区与邻小区之间的干扰评估指标，具体为邻小区对服务小区的干扰评估指标。优选地，可以对邻小区内的所有UE到服务小区的上行RSRP求平均值。在具体的实现过程中，可以根据公式(1.6)计算获得服务小区与邻小区之间的干扰评估指标：
Figure PCTCN2015082065-appb-000002
其中，i为服务小区，j为邻小区，Aji为邻小区对服务小区的干扰评估指标，U(j)为邻小区中所有UE的集合，k2为位于邻小区中的第二UE，RSRP_ULji(k2)为第二UE到服务小区的上行RSRP。
下面对位于邻小区内的第二UE到服务小区的上行RSRP的计算方式进行详细介绍。
首先根据第二UE上报的下行RSRP，获取第二信号差，其中，第二信号差为邻小区的下行RSRP与服务小区的下行RSRP之间的信号差。第二UE上报的下行RSRP包括邻小区到第二UE的下行RSRP和服务小区到第二UE的下行RSRP，当服务小区所属的基站获取到第二UE上报的下行RSRP之后，可以根据公式(1.7)计算获得邻小区的下行RSRP与服务小区的下行RSRP之间的信号差：
ΔRSRP_DLji(k2)＝RSRP_DLi(k2)-RSRP_DLj(k2)   (1.7)
其中，ΔRSRP_DLji(k2)为邻小区的下行RSRP与服务小区的下行RSRP之间的信号差，RSRP_DLi(k2)为服务小区到第二UE的下行RSRP，RSRP_DLj(k2)为邻小区到第二UE的下行RSRP。
在获取到第二信号差之后，服务小区所属的基站根据第二信号差和第二UE到邻小区的上行RSRP，获取第二UE到服务小区的上行RSRP，在具体的实现过程中，可以根据公式(1.8)计算第二UE到服务小区的上行RSRP：
RSRP_ULji(k2)＝RSRP_ULj(k2)+ΔRSRP_DLji(k2)   (1.8)
其中，RSRP_ULji(k2)为第二UE到服务小区的上行RSRP， RSRP_ULj(k2)为第二UE到邻小区的上行RSRP。
另外，邻小区内其它UE到服务小区的上行RSRP的获取方式，与第二UE到服务小区的上行RSRP的获取方式类似，此处不再赘述。
需要说明的是，对于第三种和第四种获取干扰评估指标的方式，如果能够直接通过测量，分别得到位于服务小区内的多个UE到邻小区的上行RSRP，或者位于邻小区内的多个UE到服务小区的上行RSRP，则可以直接采用该测量值，根据公式(1.3)或(1.6)，计算得到服务小区与邻小区之间的干扰评估指标。
本发明实施例提供的小区分簇的方法，通过获取到的不同的初始信息，计算获得服务小区与邻小区之间干扰评估指标，简化了干扰评估指标的计算，提高了计算的准确性。
图2为本发明另一实施例的小区分簇的方法的流程示意图。本发明实施例提供了一种小区分簇的方法。如图2所示，本实施例的方法可以包括：
步骤201、获取初始信息，初始信息用于表示服务小区与邻小区之间的切换信息，或者服务小区与邻小区之间的干扰信息，邻小区为与服务小区相邻的小区，服务小区为第一用户设备UE所在的小区。
图3为通信系统中多小区协作的结构示意图，如图3所示，在通信系统中可以有多个小区，若第一UE位于小区2中，则将小区2作为服务小区，与小区2相邻的小区均为邻小区，小区2所属的基站即可以获取到小区2与邻小区之间的同频切换信息、干扰信息或者时延信息等。
步骤202、根据初始信息获取服务小区与邻小区之间的干扰评估指标。
具体地，服务小区所属的基站获取到初始信息之后，根据该初始信息，可以获取服务小区对邻小区的干扰评估指标或邻小区对服务小区的干扰评估指标。例如：获取到小区2与其相邻的小区1的初始信息之后，继而可以获知小区2对小区1的干扰评估指标或小区1对小区2的干扰评估指标，另外，获取小区2对其它邻小区的干扰评估指标和其它邻小区对小区2的干扰评估指标的方式类似，此处不再赘述。
步骤203、将干扰评估指标大于第三预设阈值的邻小区划分为与服务 小区相同的簇。
在本实施例中，若根据协作算法的类型和输出，判断出该协作算法不仅影响服务小区，而且影响邻小区，例如协调调度功控算法等，此时，服务小区所属的基站将识别出所有受到服务小区干扰的邻小区，并将这些邻小区与服务小区划分为同一个小区簇。在具体的实现过程中，可以通过获取服务小区与邻小区之间的干扰评估指标方式中的第一种方式或第三种方式，计算得出服务小区对各邻小区的干扰评估指标，并将大于第三预设阈值的干扰评估指标对应的邻小区划分为与服务小区相同的簇。例如：若将小区2作为服务小区，通过计算获得小区2对小区1、小区2对小区4、小区2对小区5和小区2对小区3的干扰评估指标，若小区2对小区1和小区2对小区4的干扰评估指标大于第三预设阈值，则将小区2、小区1和小区4划分为同一个簇。
另外，当协作算法的输出不仅影响服务小区，而且影响邻小区时，对小区进行分簇获得协作簇之后，对网络进行优化时，需要利用协作簇内邻小区的相关信息，通过在协作簇内对网络进行优化，来提升通信系统的整体性能。
进一步地，若根据协作算法的类型和输出，判断出该协作算法只对服务小区造成影响，而不影响邻小区，例如协作干扰预测AMC算法、多小区干扰对消算法等，此时，服务小区所属的基站将识别出对服务小区造成干扰的所有邻小区，并将这些邻小区与服务小区划分为同一个小区簇。在具体的实现过程中，可以通过获取服务小区与邻小区之间的干扰评估指标方式中的第二种方式或第四种方式，计算得出各邻小区对服务小区的干扰评估指标，并将大于第三预设阈值的干扰评估指标对应的邻小区划分为与服务小区相同的簇。例如：若将小区2作为服务小区，通过计算获得小区1对小区2、小区4对小区2、小区5对小区2和小区3对小区2的干扰评估指标，若小区1对小区2、小区4对小区2的干扰评估指标大于第三预设阈值，则将小区1、小区4和小区2划分为同一个簇。
其中，第三预设阈值可以根据实际需要进行选取，在具体的实现过程中，可根据经验选择合适的值。对于第三预设阈值的具体值的选取，本实施例在此不作特别限制。
另外，当协作算法的输出只对服务小区造成影响，而不影响邻小区时，对小区进行分簇获得协作簇之后，对网络进行优化时，需要利用协作簇内邻小区的相关信息，在服务小区内进行优化，即可提升通信系统的整体性能。
本发明实施例提供的小区分簇的方法，通过获取的初始信息，得到服务小区与邻小区之间的干扰评估指标，根据干扰评估指标，将服务小区与邻小区分簇，其中，初始信息用于表示服务小区与邻小区之间的切换信息，或者服务小区与邻小区之间的干扰信息，邻小区为与服务小区相邻的小区，服务小区为第一UE所在的小区。由于根据邻小区的初始信息得到小区间的干扰评估指标，从而进行小区协作簇的划分，提高了通信系统的性能。另外，通过判断干扰评估指标是否大于第三预设阈值，并根据判断结果进行分簇，提高了分簇的准确性。
进一步地，如上所述的方法实施例，若协作算法对信息交互的时延有要求，例如在无线接入网IP化(Internet Protocol Radio Access Network；简称：IP RAN)下，则在进行小区分簇之前，首先需要确定第一UE与邻小区之间的时延是否小于第四预设阈值，若判断得出时延小于第四预设阈值，也即满足该协作算法对信息交互的时延要求，则根据干扰评估指标，对服务小区与邻小区进行簇的划分，以获得协作簇；若第一UE与邻小区之间的时延不满足该协作算法对信息交互的时延要求，则在进行簇划分时不考虑该邻小区。
需要进行说明的是，确定第一UE与邻小区之间的时延小于第四预设阈值的操作，也可以在获取服务小区与邻小区之间的干扰评估指标之前进行。
另外，在现有技术中，对小区进行分簇时，通常是随机选择一个可用小区作为“簇主”进行划分，这会导致通信系统性能较低。而在本实施例中，每个小区都承担着“簇主”的角色，因而既可以保证用户的公平性，又可以改善通信系统的性能。
进一步地，采用上述实施例中的分簇方式对小区进行分簇，获得的各小区的协作簇可以是相互交叠的，也可以是不交叠的。另外，本领域技术人员可以理解，采用此方式获得的协作簇是小区级的，因而不需要 考虑协作系统的容量，可以降低分簇算法的复杂度。
进一步地，如上所述的方法实施例，当完成小区分簇，获得协作簇之后，若在IP RAN组网模式下，服务小区所属的基站将通过X2口将分簇信息发送给协作簇内除其自身之外的其它基站的小区；若在云化基带处理单元(Cloud Base Band；简称：Cloud BB)模式下，则通过回程线路或内存共享的方式，将分簇信息通知协作簇内所有的小区，以进行网络的整体优化。
图4为本发明一实施例的基站的结构示意图。如图4所示，本发明实施例提供的基站包括第一获取模块401、第二获取模块402和分簇模块403。
其中，第一获取模块401用于获取初始信息，所述初始信息用于表示所述服务小区与邻小区之间的切换信息，或者所述服务小区与所述邻小区之间的干扰信息，所述邻小区为与所述服务小区相邻的小区，所述服务小区为第一用户设备UE所在的小区；第二获取模块402用于根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标；分簇模块403用于根据所述干扰评估指标，将所述服务小区与所述邻小区分簇。
本实施例的小区分簇的基站，可以用于图1所示小区分簇的方法实施例的技术方案，其实现原理类似，此处不再赘述。
本发明实施例提供的基站，通过获取的初始信息，得到服务小区与邻小区之间的干扰评估指标，根据干扰评估指标，将服务小区与邻小区分簇，其中，初始信息用于表示服务小区与邻小区之间的切换信息，或者服务小区与邻小区之间的干扰信息，邻小区为与服务小区相邻的小区，服务小区为第一用户设备UE所在的小区。由于根据邻小区的初始信息得到小区间的干扰评估指标，从而进行小区协作簇的动态划分，提高了通信系统的性能。
图5为本发明另一实施例的基站的结构示意图。如图5所示，本实施例在图4所示实施例的基础上，所述第二获取模块402包括：第一切换次数获取子模块4021和第一处理子模块4022。
其中，第一切换次数获取子模块4021用于当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，获得从所述邻小区切换 到所述服务小区的第一切换次数；第一处理子模块4022用于若所述第一切换次数大于第一预设阈值，则根据预设的第一增函数和所述第一切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
可选地，所述第二获取模块402包括第二切换次数获取子模块4023和第二处理子模块4024。
其中，第二切换次数获取子模块4023用于当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，获取从所述服务小区切换到所述邻小区的第二切换次数；第二处理子模块4024用于若所述第二切换次数大于第二预设阈值，则根据预设的第二增函数和所述第二切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
可选地，所述第二获取模块402包括第三处理子模块4025。
其中，第三处理子模块4025用于当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述服务小区内的多个UE到所述邻小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括所述第一UE；
所述第三处理子模块4025具体用于：
根据所述第一UE上报的下行RSRP，获取第一信号差，所述第一信号差为所述服务小区的下行RSRP与所述邻小区的下行RSRP之间的信号差；所述第一UE上报的下行RSRP包括所述服务小区到所述第一UE的下行RSRP和所述邻小区到所述第一UE的下行RSRP；
根据所述第一信号差和所述第一UE到所述服务小区的上行RSRP，获取所述第一UE到所述邻小区的上行RSRP。
可选地，所述第二获取模块402包括第四处理子模块4026。
其中，第四处理子模块4026用于当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述邻小区内的多个UE到所述服务小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括第二UE；
所述第四处理子模块4026具体用于：
根据所述第二UE上报的下行RSRP，获取第二信号差，所述第二信号差为所述邻小区的下行RSRP与所述服务小区的下行RSRP之间的信号 差，所述第二UE上报的下行RSRP包括所述邻小区到所述第二UE的下行RSRP和所述服务小区到所述第二UE的下行RSRP；
根据所述第二信号差和所述第二UE到所述邻小区的上行RSRP，获取所述第二UE到所述服务小区的上行RSRP。
可选地，所述分簇模块403具体用于：将所述干扰评估指标大于第三预设阈值的邻小区划分为与所述服务小区相同的簇。
可选地，所述基站还包括确定时延模块404，该确定时延模块404用于确定所述第一UE与所述邻小区之间的时延小于第四预设阈值；则执行根据所述干扰评估指标，将所述服务小区与所述邻小区分簇的操作。
本实施例的基站，可以用于执行本发明任意实施例所提供的小区分簇的方法的技术方案，其实现原理和技术效果类似，此处不再赘述。
图6为本发明再一实施例的基站的结构示意图。如图6所示，本实施例提供的基站100包括处理器1001和存储器1002和接收器1003，接收器1003可以和处理器1001相连。其中，存储器1002存储执行指令，当基站100运行时，处理器1001与存储器1002之间通信，处理器1001调用存储器1002中的执行指令，用于执行以下操作：
获取初始信息，所述初始信息用于表示所述服务小区与邻小区之间的切换信息，或者所述服务小区与所述邻小区之间的干扰信息，所述邻小区为与所述服务小区相邻的小区，所述服务小区为第一用户设备UE所在的小区；
根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标；
根据所述干扰评估指标，将所述服务小区与所述邻小区分簇。
可选地，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，获取从所述邻小区切换到所述服务小区的第一切换次数；
若所述第一切换次数大于第一预设阈值，则根据预设的第一增函数和所述第一切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
可选地，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，获取从所述服务小区切换到所述邻小区的第二切换次数；
若所述第二切换次数大于第二预设阈值，则根据预设的第二增函数和所述第二切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
可选地，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述服务小区内的多个UE到所述邻小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括所述第一UE；
获取所述服务小区内的所述第一UE到所述邻小区的上行RSRP包括：
根据所述第一UE上报的下行RSRP，获取第一信号差，所述第一信号差为所述服务小区的下行RSRP与所述邻小区的下行RSRP之间的信号差，所述第一UE上报的下行RSRP包括所述服务小区到所述第一UE的下行RSRP和所述邻小区到所述第一UE的下行RSRP；
根据所述第一信号差和所述第一UE到所述服务小区的上行RSRP，获取所述第一UE到所述邻小区的上行RSRP。
可选地，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述邻小区内的多个UE到所述服务小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括第二UE；
获取所述邻小区内的所述第二UE到所述服务小区的上行RSRP包括：
根据所述第二UE上报的下行RSRP，获取第二信号差，所述第二信 号差为所述邻小区的下行RSRP与所述服务小区的下行RSRP之间的信号差，所述第二UE上报的下行RSRP包括所述邻小区到所述第二UE的下行RSRP和所述服务小区到所述第二UE的下行RSRP；
根据所述第二信号差和所述第二UE到所述邻小区的上行RSRP，获取所述第二UE到所述服务小区的上行RSRP。
可选地，根据所述干扰评估指标，将所述服务小区与所述邻小区分簇包括：
将所述干扰评估指标大于第三预设阈值的邻小区划分为与所述服务小区相同的簇。
可选地，根据所述干扰评估指标，将所述服务小区与所述邻小区分簇之前，还包括：
确定所述第一UE与所述邻小区之间的时延小于第四预设阈值，则执行根据所述干扰评估指标，将所述服务小区与所述邻小区分簇的操作。
本实施例的基站，可以用于执行本发明任意实施例所提供的小区分簇的方法的技术方案，其实现原理和技术效果类似，此处不再赘述。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (14)

  1. 一种小区分簇的方法，其特征在于，包括：
    获取初始信息，所述初始信息用于表示所述服务小区与邻小区之间的切换信息，或者所述服务小区与所述邻小区之间的干扰信息，所述邻小区为与所述服务小区相邻的小区，所述服务小区为第一用户设备UE所在的小区；
    根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标；
    根据所述干扰评估指标，将所述服务小区与所述邻小区分簇。
  2. 根据权利要求1所述的方法，其特征在于，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
    当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，获取从所述邻小区切换到所述服务小区的第一切换次数；
    若所述第一切换次数大于第一预设阈值，则根据预设的第一增函数和所述第一切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
  3. 根据权利要求1所述的方法，其特征在于，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
    当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，获取从所述服务小区切换到所述邻小区的第二切换次数；
    若所述第二切换次数大于第二预设阈值，则根据预设的第二增函数和所述第二切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
  4. 根据权利要求1所述的方法，其特征在于，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
    当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述服务小区内的多个UE到所述邻小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括所述第一UE；
    获取所述服务小区内的所述第一UE到所述邻小区的上行RSRP包 括：
    根据所述第一UE上报的下行RSRP，获取第一信号差，所述第一信号差为所述服务小区的下行RSRP与所述邻小区的下行RSRP之间的信号差，所述第一UE上报的下行RSRP包括所述服务小区到所述第一UE的下行RSRP和所述邻小区到所述第一UE的下行RSRP；
    根据所述第一信号差和所述第一UE到所述服务小区的上行RSRP，获取所述第一UE到所述邻小区的上行RSRP。
  5. 根据权利要求1所述的方法，其特征在于，根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标包括：
    当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述邻小区内的多个UE到所述服务小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括第二UE；
    获取所述邻小区内的所述第二UE到所述服务小区的上行RSRP包括：
    根据所述第二UE上报的下行RSRP，获取第二信号差，所述第二信号差为所述邻小区的下行RSRP与所述服务小区的下行RSRP之间的信号差，所述第二UE上报的下行RSRP包括所述邻小区到所述第二UE的下行RSRP和所述服务小区到所述第二UE的下行RSRP；
    根据所述第二信号差和所述第二UE到所述邻小区的上行RSRP，获取所述第二UE到所述服务小区的上行RSRP。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，根据所述干扰评估指标，将所述服务小区与所述邻小区分簇包括：
    将所述干扰评估指标大于第三预设阈值的邻小区划分为与所述服务小区相同的簇。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，根据所述干扰评估指标，将所述服务小区与所述邻小区分簇之前，还包括：
    确定所述第一UE与所述邻小区之间的时延小于第四预设阈值，则执行根据所述干扰评估指标，将所述服务小区与所述邻小区分簇的操作。
  8. 一种基站，其特征在于，包括：
    第一获取模块，用于获取初始信息，所述初始信息用于表示所述服务小区与邻小区之间的切换信息，或者所述服务小区与所述邻小区之间的干扰信息，所述邻小区为与所述服务小区相邻的小区，所述服务小区为第一用户设备UE所在的小区；
    第二获取模块，用于根据所述初始信息获取所述服务小区与所述邻小区之间的干扰评估指标；
    分簇模块，用于根据所述干扰评估指标，将所述服务小区与所述邻小区分簇。
  9. 根据权利要求8所述的基站，其特征在于，所述第二获取模块包括：
    第一切换次数获取子模块，用于当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，获得从所述邻小区切换到所述服务小区的第一切换次数；
    第一处理子模块，用于若所述第一切换次数大于第一预设阈值，则根据预设的第一增函数和所述第一切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
  10. 根据权利要求8所述的基站，其特征在于，所述第二获取模块包括：
    第二切换次数获取子模块，用于当所述初始信息用于表示所述服务小区与所述邻小区之间的切换信息时，获取从所述服务小区切换到所述邻小区的第二切换次数；
    第二处理子模块，用于若所述第二切换次数大于第二预设阈值，则根据预设的第二增函数和所述第二切换次数获取所述服务小区与所述邻小区之间的干扰评估指标。
  11. 根据权利要求8所述的基站，其特征在于，所述第二获取模块包括：
    第三处理子模块，用于当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述服务小区内的多个UE到所述邻小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括所述第一UE；
    所述第三处理子模块具体用于：
    根据所述第一UE上报的下行RSRP，获取第一信号差，所述第一信号差为所述服务小区的下行RSRP与所述邻小区的下行RSRP之间的信号差；所述第一UE上报的下行RSRP包括所述服务小区到所述第一UE的下行RSRP和所述邻小区到所述第一UE的下行RSRP；
    根据所述第一信号差和所述第一UE到所述服务小区的上行RSRP，获取所述第一UE到所述邻小区的上行RSRP。
  12. 根据权利要求8所述的基站，其特征在于，所述第二获取模块包括：
    第四处理子模块，用于当所述初始信息用于表示所述服务小区与所述邻小区之间的干扰信息时，根据所述邻小区内的多个UE到所述服务小区的上行参考信号接收功率RSRP，获取所述服务小区与所述邻小区之间的干扰评估指标，其中，所述多个UE包括第二UE；
    所述第四处理子模块具体用于：
    根据所述第二UE上报的下行RSRP，获取第二信号差，所述第二信号差为所述邻小区的下行RSRP与所述服务小区的下行RSRP之间的信号差，所述第二UE上报的下行RSRP包括所述邻小区到所述第二UE的下行RSRP和所述服务小区到所述第二UE的下行RSRP；
    根据所述第二信号差和所述第二UE到所述邻小区的上行RSRP，获取所述第二UE到所述服务小区的上行RSRP。
  13. 根据权利要求8-12任一项所述的基站，其特征在于，所述分簇模块具体用于：
    将所述干扰评估指标大于第三预设阈值的邻小区划分为与所述服务小区相同的簇。
  14. 根据权利要求8-13任一项所述的基站，其特征在于，还包括：
    确定时延模块，用于确定所述第一UE与所述邻小区之间的时延小于第四预设阈值，则执行根据所述干扰评估指标，将所述服务小区与所述邻小区分簇的操作。
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